Apparatus for bleaching lard compounds.



PATENTED NOV. 7, 1905. J. N. HUMPHREYS. APPARATUS FOR BLEAGHING LARDCOMPOUNDS.

APPLIOA'EION FILED MAY 1, 1905- I Of/76:? I

Per

fife/way. I

UNITED STATES PATENT OFFICE.

JEROME N. HUMPHREYS, OF DALLAS, TEXAS, ASSIGNOR TO ARMSTRONG PACKINGCOMPANY, OF DALLAS, TEXAS, A CORPORATION OF TEXAS.

APPARATUS FOR BLEAQHING LARD COMPOUNDS.

Specification of Letters Patent.

Patented Nov. 7, 1905.

Application filed May 1,1905. Serial No. 258,331.

To all whom it may concern:

Be it known that I, JEROME N. HUMPHREYS, a citizen of the United States,residing at Dallas, in the county of Dallas and State of Texas, haveinvented new and useful Improvements in Apparatus for Bleaching LardCompounds, of which the following is a specification.

This invention relates to the art of bleach ing lard compound and otherlike substances, and has for its object to provide a novel apparatus forsubjecting the lard compound to the simultaneous action of grinding ordeformation and cooling.

I have illustrated said apparatus in the accompanying drawings, in whichFigure 1 is a sectional plan view of two bleaching rollers and theiraccompanying parts. Fig. 2 is a side elevation of the same, and Fig. 3is a transverse sectional view on the line 3 of Fig. 2.

Referring now to the drawings, 4 4 indicate, respectively, tworollers,which are in the form of hollow iron or steel cylinders turnedtrue, so that when theyroll together they will fit tightly, leaving nospace between them. The numerals 5 indicate cast-iron heads screwed intoone end of each of said cylinders, respectively, which heads are mountedin suitable bearings 6. The numerals 7 indicate castiron heads secured,respectively, in the opposite ends of said cylinder, said heads beingsupported in suitable bearings 8. The bearings 6 and 8 are held insupports 9 at opposite ends of the rollers 4, as shown, andclamping-screws 10 are provided on the outer side of each of saidbearings, said clamping-screws passing through the supports 9' andengaging the respective bearings 6 and 8, whereby the rollers can beforced and constantly held in close contact.

11 indicates brine-inlet pipes passing centrally through the heads 5 andthrough suitable glands 12, secured in the outer ends of said heads.Brine-outlet pipes 13 pass through the heads 7 and through glands 14,secured in the ends of said heads.

One of the rollers thas each of its heads 5 and 7 provided with a collar15, which are of a suflicient diameter to extend across the spacebetween the heads, the purpose of these collars being to confine thelard compound on the rollers. As shown by Fig. 2, the rollers are set toincline downwardly from their upper to their lower ends, and the heads 7at said lower ends are suitably grooved on their outer periphery toprovide a space 16 between them and the collar 15, through which thelard compound can run off of the rollers.

17 indicates two similar gear-wheels, mounted on the heads 5 of therollers and in mesh with each other, these gears being employed to causethe rollers to rotate together. rotation may be caused in any desiredmanner, as by a driven gear engaging one of the gear-wheels 17, suchdriving-gear not being shown.

The lard compound is supplied to the rollers near the upper endsthereof, and for this purpose I provide a splash-box 18, extending intowhich is a pipe 19, supporting a box-union 20, supplied with a strainer21. The lard compound is forced through the pipe 19 under pressure ofabout forty pounds and passing through the strainer or gage 21 fallsinto the space between the rollers at the upper ends thereof. Theserollers are revolved in opposite directions, or toward each other, at aspeed of about ninety revolutions per minute. The incline of the rollerscauses the lard compound to flow down between them toward the lower end,and while so passing between the revolving rollers it is bleached to ahigh degree of whiteness, such bleaching being caused by the grinding ordeformation and by the fact that every particle of lard compound issubjected to the extremely-cold surface of the rollers. The circulationof brine through the rollers is performed in any well-known manner andforms no part of this invention.

The advantages of bleachinglard compound in the manner described are,first, a whiter lard compound can be produced than with the Thisordinary method of cooling by adhesion; sec- 0nd, the lard compound willbe much more uniform in quality; third, by my method there scribedinsures the production of a maximum degree of deformation and cold toproduce the above-named results.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. Apparatus for use in bleaching lard com pound, comprising hollowinclined rollers in contact throughout their length and having inletsand outlets at opposite ends, respectively, to permit the circulationtherethrough of a cooling agent, rotating mechanism combined with saidrollers, and means for discharging lard compound upon said rollers atthe upper ends thereof.

2. Apparatus for use in bleachinglard compound, comprising hollowinclined rollers in contact throughout their length and having inletsand outlets at opposite ends, respectively, to permit the circulationtherethrough of a cooling agent, rotating mechanism combined with saidrollers, means for adjusting the degree of contact of said rollers,andmeans for discharging lard compound upon said rollers at the upper endsthereof.

3. Apparatus for use in bleaching lard compound, comprising hollowinclined rollers in contact throughout their length and having inletsand outlets at opposite ends, respectively, to permit the circulationtherethrough tending through the heads at opposite ends of each ofsaidrollers, respectively, the heads at the lower ends of said rollersbeing circumferentially grooved to afford a recess, a collar carried byone of said heads and extending across said recess, rotating mechanismcombined with said rollers, and means for discharging lard compound uponsaid rollers at the upper ends thereof.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JEROME N. HUMPHREYS.

Witnesses:

LAMMIN J ONES, E. L. FLIPPEN.

